The '''National Park Service''' ('''NPS''') is an List of United States federal agencies|agency
of the Federal government of the United States|United States federal government
that manages all List of areas in the United States National Park System|U.S. national parks
, many United States National Monument|American national monuments
, and other conservation and historical properties with various title designations.
It was created on August 25, 1916, by United States Congress|Congress
through the National Park Service Organic Act
and is an Government agency|agency
of the United States Department of the Interior
. The NPS is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment.
21,989 employees of the NPS oversee List of the United States National Park System...